TEHRAN, May 22 (Xinhua) -- Western powers should try to shorten the time span needed to relieve sanctions on Iran to achieve a final solution to the decade-long standoff over Tehran's nuclear program after it made further compromises Wednesday night, analysts said.

After Iran offered concessions on almost every aspect of its nuclear program, "a key sticking point left on the negotiation table is the time span for lifting sanctions," Sadeq Zibakalam, a professor of politics at Tehran University, told Xinhua on Thursday.

Iran has undertaken to implement five new "practical measures" including two steps related to "possible military dimensions" by Aug. 25, the International Atomic Energy Agency (IAEA) said on Wednesday.

IRAN SINCERE FOR SOLUTION

The "five new measures" followed a series of compromises Tehran had made in previous talks with the IAEA and the so-called P5+1 world powers -- Britain, China, France, Russia, the United States, the five permanent members of the United Nations Security Council, and Germany.

Iran has frozen the development of its nuclear program and diluted 20 percent uranium in line with the Geneva deal it signed with P5+1 last November. The measures were verified by the IAEA.

Iran also agreed to alter the design of its contended Arak heavy water reactor to minimize plutonium yield. Iranian Foreign Minister Mohammad Javad Zarif said earlier that disputes over the Arak heavy water reactor were "essentially resolved" with plutonium yield of the reactor to be reduced by 80 percent.

Despite pressure from hard-liners, the Iranian government kept pushing ahead for measures to address outside concerns over the country's nuclear program.

"Iran's message is clear: We are serious for a final solution," Zibakalam said.

Despite the recent failure to reach a comprehensive deal at talks between Iran and the P5+1, Iranian President Hassan Rouhani insisted the talks will ultimately lead to a final agreement " because a win-win situation is in everyone's interest."